Functional description and allocation of terminal pins
Manual BG41/BG42/BG43
3-84
Rev. 99/49
Allocation DB99
The data words of the data block DB99 are allocated as follows:
DW0
DL0:
40h
=
building block’s aknowledgement byte
DR0: Error byte
00h
=
no error
01h
=
building block wrongly addressed or defect
04h
=
data block not available
0Ah
=
wrong clock command
DW1
DL1:
40h
=
clock should be addressed
DR1:
Sub-command for operating clock
01h
=
Transfer time and date to PLC
(BCD depiction)
02h
=
irrelevant if using the DCF77
03h
=
irrelevant if using the DCF77
04h
=
irrelevant if using the DCF77
05h
=
Transfer time and date to PLC
(ASCII character)
DW1 is to be previously occupied by the user prior to the loading of FBs.
DW2
DL2
00h…59h
seconds (BCD)
DR2
00h…59h
minutes (BCD)
DW3
DL3
00h…23h
hours (BCD)
DR3
01h…31h
day (BCD)
DW4
DL4
01h…12h
month (BCD)
DR4
00h…99h
year (BCD)
DW5
DL5
00h…06h
weekday, Sunday = 00h (BCD)
DR5
00h
Содержание SSM-BG41
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